Finding the Fourth Proportional to 1,477,319.20, 2,214,423.60 and 578,413.60
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Solution
The fourth proportional to 1,477,319.20, 2,214,423.60 and 578,413.60 is: 867,011.49
Step by Step Solution
- Step 1: Write the proportion equation
1,477,319.20 : 2,214,423.60 = 578,413.60 : x - Step 2: Convert to fraction form
1,477,319.20/2,214,423.60 = 578,413.60/x - Step 3: Cross multiply
1,477,319.20x = 2,214,423.60 × 578,413.60 - Step 4: Simplify right side
1,477,319.20x = 1,280,852,726,400.96 - Step 5: Solve for x
x = 1,280,852,726,400.96/1,477,319.20 - Step 6: Final answer
x = 867,011.49
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.